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How to get python caller object information?

How can I fetch the caller object from within a function, and inspect information about that caller?

class A(object):
 def class_A_fun(self):
 print 'caller from class' # → B
 print 'caller from method' # → class_B_fun
 print 'caller module' # → foomodule
 print 'caller instance' # → obj
 print 'caller object file name or path' # → 'foomodule.py'
class B(object):
 def class_B_fun(self): 
 obj = A()
 obj.class_A_fun() 
if __name__ == "__main__":
 obj = B()
 obj.class_B_fun()

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  • there is nothing that says your caller must have a local called self. that's pure convention (for methods not functions) Commented Sep 2, 2022 at 11:25
  • 1
    @DavidJones I changed my answer, however there are more complicated situations, e.g. for a static method. In the end one may need to analyze the whole source code to properly identify the calling object. Commented Sep 7, 2022 at 15:18

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